tflite: mtk: Fix int64 core dump issue

BUG=b:338914051,b:338914262
TEST=stable_delegate_test_suite
--gtest_filter=ConvolutionOpTest/ConvolutionOpTest.SimplePerChannel16x8Bias64/*
--gtest_filter=PadOpTest.Int64Padding*
--gtest_filter=PadV2OpTest.Int64Padding*

Change-Id: I7ad0e2f59767b80af7579efb9114bd02f210fd15
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/tflite/+/5528837
Tested-by: Pochun Lin <pochun.lin@mediatek.corp-partner.google.com>
Commit-Queue: Shik Chen <shik@chromium.org>
Reviewed-by: Pochun Lin <pochun.lin@mediatek.corp-partner.google.com>
Auto-Submit: Pochun Lin <pochun.lin@mediatek.corp-partner.google.com>
Reviewed-by: Shik Chen <shik@chromium.org>
3 files changed